Lennox 12L20 Pressure Switch 326070-701 this valve is engineered to

this valve is engineered to handle a 250 PSI maximum inlet pressure while providing a wide 25-90 PSI adjustable outlet pressure range

this 240V resistive heating assembly ensures precise thermal transfer within the air handler

maintaining a stable 12 to 30 degrees Celsius set point even in high-traffic mechanical environments

this component ensures the electrical and mechanical integrity of the original system design

Lennox 12L20 Pressure Switch 326070-701 this valve is engineered toThe Lennox 12L20 Pressure Switch is a critical OEM HVAC safety control designed to protect the compressor and refrigeration circuit from catastrophic failure. As a 590 PSI high pressure switch, it operates on a Normally Closed (N C) logic, meaning the internal contacts are closed during standard operation and snap open to kill the control circuit when discharge pressure exceeds the factory setpoint. This Lennox replacement part ensures the system